CD Markers

Author: Nat Pernick, M.D. (see Authors page)

Revised: 31 July 2018, last major update July 2013

Copyright: (c) 2002-2018,, Inc.

Related: CD1aCD1cCD1dCD1eCD1-General

Cite this page: Pernick, N. CD1b. website. Accessed October 22nd, 2018.
Definition / general
  • On chromosome 1q22-23 (not MHC linked); noncovalently associated with beta2 microglobulin
  • Capable of binding ligands with greatly varying alkyl chain lengths (including Mycobacteria tuberculosis and Mycobacteria leprae) through a complex network of interconnected hydrophobic pockets (J Immunol 2004;172:2382, Proc Natl Acad Sci USA 2011;108:19335, OMIM #188360)
  • Part of immune response to intracellular bacteria
  • Human gammadelta T cells recognize Lipid A in a CD1b or CD1c restricted manner as a first response to gram negative bacteria (Biol Direct 2009;4:47)
Uses by pathologists
  • No significant clinical use by pathologists
Microscopic (histologic) images

Images hosted on other servers:

Leprosy patient

Positive staining - normal
  • Cortical thymocytes, Langerhans cells (weaker staining than CD1a), myeloid dendritic cells, brain pyramidal cells and subpopulation of B cells
Positive staining - disease
Negative staining
  • Normal B cells